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SubjectsNutrition & DieteticsNutrition & DietChapter 1 — Nutrients & Balanced Diet1.1 Macronutrients

Topic 1.1 · Nutrition & Dietetics · Nutrients & Balanced Diet

Macronutrients

Carbohydrates and proteins give 4 kcal/g; fats give 9 kcal/g.

Proteins are needed for growth, repair and immunity.

Important Facts

Fat calories
9 kcal per gram
Protein function
Growth & tissue repair

Key Points

  • Carbohydrates are the main energy source
  • Essential amino acids come from proteins
Exam-Oriented Notes
  • »Fat = 9 kcal/g, most energy-dense

Related topics

1.2 Vitamins & Minerals
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